package com.itheima.day06;

import java.util.ArrayList;

public class Practice1 {
    public static class Practice5 {
        public static void main(String[] args) {
            ArrayList<Integer> list = new ArrayList();
            list.add(1);
            list.add(2);
            list.add(3);
            //list.remove(Integer.valueOf(2)); //按照元素删除
            Integer integer = Integer.valueOf(2);
            System.out.println(list);
        }
    }
}
